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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part J. Journal of engineering tribology >Lubricant transport across the piston ring with flat and triangular lubrication injection profiles on the liner in large two-stroke marine diesel engines
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Lubricant transport across the piston ring with flat and triangular lubrication injection profiles on the liner in large two-stroke marine diesel engines

机译：在大型两冲程船用柴油发动机的衬里上具有平坦和三角形润滑注射件的活塞环润滑剂运输

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摘要

A theoretical investigation of the lubricant transport across the top compression piston ring in a large two-stroke marine diesel engine is presented. A numerical model for solving Reynolds equation between the piston ring and cylinder liner based on the finite difference method in one dimension has been made. The model includes force equilibrium of the piston ring, perturbation of Reynolds equation, and transient mass conservation. The model represents a new method of achieving mass conservation across the piston ring and between different time-dependent positions. For analyzing the lubricant transport across the piston ring, two different kinds of initial lubricant profile on the liner and two different kinds of load are investigated i.e. a flat profile and an approximated triangular profile as well as no load and a combustion load based on a combustion pressure profile. The impact from the different load conditions and different lubricant profiles on the liner are presented for film thicknesses, development in the lubricant profiles on the liner as well as the lubricant consumption at each stroke.
机译：介绍了大型两冲程船用柴油发动机中顶部压缩活塞环润滑剂运输的理论研究。已经进行了一种基于一个尺寸的有限差分方法求解活塞环和气缸衬里之间的雷诺等式的数值模型。该模型包括活塞环的力平衡，雷诺方程的扰动和瞬态容量。该模型代表了一种在活塞环和不同时间依赖位置之间实现质量保护的新方法。为了分析穿过活塞环的润滑剂传输，研究了衬里上的两种不同类型的初始润滑剂曲线和两种不同的负载，即平面曲线和近似的三角形轮廓以及基于燃烧的燃烧和燃烧载荷压力曲线。衬里上的不同负载条件和不同润滑剂曲线的影响用于薄膜厚度，在衬里上的润滑剂型材中的开发以及每个行程的润滑剂消耗。

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